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Topics:
Radiation Oncology • Gastrointestinal Cancers
What elective lymph node areas do you cover for T4a rectal adenocarcinoma?
Do you include external iliac nodes as for T4b (adjacent [anterior] organ invasion) or do you maintain the same coverage you use for T3 disease with a T4a (visceral peritoneum invasion)?
Answer from: Radiation Oncologist at Academic Institution
Here's my take: I think the spirit of this convention is really that involvement of more anterior organs raises the risk of external lymph node chain involvement. Visceral peritoneal involvement is certainly a marker for a more aggressive disease and certainly may also mean that the cancer involves ...
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